stress

n.

c.1300, "hardship, adversity, force, pressure," in part a shortening of Middle French destresse (see distress), in part from Old French estrece "narrowness, oppression," from Vulgar Latin *strictia, from Latin strictus "compressed," past participle of stringere "draw tight" (see strain (v.)). The purely psychological sense is attested from 1942.

v.

c.1300, "to subject (someone) to force or compulsion," from the source of stress (n.). The figurative meaning "put emphasis on" is first recorded 1896, from notion of laying pressure on something by relying on it. Related: Stressed; stressing.

The force per unit area applied to an object. Objects subject to stress tend to become distorted or deformed. Compare strain. See also axial stress, shear stress., See more at Hooke's law.

A physiologic reaction by an organism to an uncomfortable or unfamiliar physical or psychological stimulus. Biological changes result from stimulation of the sympathetic nervous system, including a heightened state of alertness, anxiety, increased heart rate, and sweating.

stress definition

In physics, the internal resistance of an object to an external force that tends to deform it.

stress definition

A physical factor, such as injury, or mental state, such as anxiety, that disturbs the body's normal state of functioning. Stress may contribute to the development of some illnesses, including heart disease and cancer.

Note: The term stress also refers to the physical and mental state produced in the body when it is influenced by such factors: “The stress of the new job was too much for Tim, so he requested reassignment to his old position in the company.”